Why was the introduction of corn and potatoes to europe and asia so significant

Which pair of numbered statements best completes the chart related to thefeatures of the chambers of congress? senatehouse of representativesproposes all tax billsapproves presidential appointments(1)oa. (1) all states have equal representation; (2) representation basedon state populationsob. (1) ratifies treaties with foreign countries; (2) can impeach publicofficialsoc. (1) affected by gerrymandering; (2) not affected bygerrymanderingod. (1) led by the vice president; (2) led by a speaker